Electrically-heated spray-valve



H. 0. BAKER.

ELECTRICALLY HEATED SPRAY VALVE.

APPLICATION FAILED MAR.13,|918.

1 ,323,999. Patented Dec. 2.1919.

957Mo fn@ ys 'UNITED srATEs :PA

onmen- HARTLEY 0. BAKER, OF PUEBLO, COLORADO, ASSIGNOR TO THE BAKERSTEAM IVfOTOR CAR-AND MANUFACTURING CO., INC., OF PUEBLO, COLORADO.

ELECTRICALLY-HEATED .SPRAY-VALVE.

'Application alsa March 13,1918.

Pueblo, in the county of Pueblo and State of Colorado, have inventedcertain new and useful Improvements in Electrically-Heated Spray-Valves;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as .will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to electrically heated needle spray valves,especially designed for use in connection with my steam auto- :mobileprimary burner and main burner which form the subject matter 'ofrespective co-pending applications iiled March 25, 1918, and- February26, 1918, Serial Numbers 224,599 and 219,284. v

-The main object of the invention is to provide means for electricallyheating the hydrocarbon prior to its being ydischarged from the needlevalve.

A further object ofthe invention is to provide the needle valve `with anelectric heatingv coil positioned around the vspray I nozzle whereby thehydrocarbon may be heated and vaporized prior to its discharge fromthenozzle.

A further object of the invention is to provide a second heating coilarranged in advance of the nozzle and in axial alinement-,therewithwhereby the air surrounding the discharge end of the nozzle may beheated pri r to its admixture with the hydrocarbon (sis it is shot fromthe valve nozzle.

A still further object of the invention is to'arrange both heating coilsin series so that the hydrocarbon will be heated and 40' heated airadjacent the discharge end. of

vaporlzed prior to its admixture with the the nozzle.

. l Astill further object of the invention is to provide-a simple andinexpensive needle 4 5 spray valve of the nature indicated whichembodies a mimiinum number of parts.

With these and other objects in view as will appear as the descriptionproceeds, the invention comprises the various novel features ofconstruction, combination and arrangement of parts as will be more fullydescribed hereinafter and afterward specilically claimed. f

' 'Referring vto the drawings, Figure 1 rep- .rcsents a side elevationof my improved conspeeifica'ion of Letters raient.

18 of the nozzle.

Patented Dec. 2, 1919.y Serial-No. 222,153.

valve.

struction of electrically heated needle spray I i Fig. 2 represents avertical longitudinal I sectional view therethrough, and

Fig. 3 represents a sectional 4elevation of a modified form of valve.

In order that the construction and operation of the invention may bereadily comprehended by those skilled yin the art to which the inventionrelates, I have illustrated an approved embodiment thereof in theaccompanying drawings and will now proceed to describe the same inconnection with said drawings, in which 1 is Jhevalve body provided atone end with a ange 2 and at one s1de with a laterallyl projectingthreaded nipple- 3.v A circular-,shoulder 4 is formed on the end of `thevalve body and carries a central longitudinally )disposed nozzle 5having a reduced ortapered discharge end 6. The opposite end of thevalve body is internally threaded for the reception-of one end of theplug '7, said plug being formednon-circular intermediate its ends asindicated at 8 for the application of a wrench, while the outer end 1sreduced to form-a neck 9 to which is threadedly connected a packing nut10.

lA needle valve rod 11 is'dispo'sed -longitudinally through the nut\]\0,plug 7 valve body 1 and the nozzle 5, said valve rod becated at 12.r1`he .forward end of the .valve rod cooperates with the A tubularstrainer 1 4 is removablypositioned within the valve body and plug andis supported thereby concentrically of the valve rod and serves toeffectively arrest discharge orifice ing threaded through the plug 7 asindiany foreign matter that may enter the valve being discharged fromthe valve may .be

heated and vaporized, 1 position a suitable electric heating coil 15around the nozzle 5 between the shoulder 4 and a disk 16 carried by thenozzle adjacent its outer end.

For desirable and additional heatinga coil 17 is positioned around thedischarge end of the' nozzle and Vin axial alinement therewith andisconnected in series with the heating coil 15. This additional heatingcoil will'e'ectively serve to heat'the surround- Y ng atmosphere priorto the admixturp of the hydrocarbon with it as it is shot from thenozzle, thus producing a combustible gas in'a more ready and 'efficientmanner and at the same time4 tendingto eliminate theA hissing orroaring` sound commonA to needlespray valves. his result is due to thefact .that the electrical heating orre- A sistance Acoil .17 whichsurrounds the tip or discharge vend of the nozzle and which projectsbeyond said tip., has its convolutions spaced apart for the passage ofair therecharged if* found desirable'.

through to the jet of vapor which discharges `from the nozzle. rIhus,the air in passing to the jet willbe heated'to attain thel desiredresults. l v I In the use of the valve the forward end lof the nozzle isprojected throughl an opening in the burner .casing until the flange 2rests flush against the outer surface of the burner casing. The. heatingcoils are connected in circuit with a batter l18 and a hand -operableswitch 19 adapte to 'be positioned within convenient reach of the motorvehicle ydrivers seat whereby the-operator can 'at willinitially heatand vaporize the hydrocarbon 'prior to its being discharged into 4the'burners in starting the machine.

In the modificationl shown in Fig. 3 the nozzle is provided with aldetachable tip 20 embodiment thereof I desire to have it understoodthat such changes in construction and arrangement of parts may be madewhen desired as are within the scope of the ap ended claims. Vl

aving thus fully described my invention what I claim as new is: .y

1. A needle valve having l a shoulder formed at one end and a spraynozzle projecting centrally therefrom, a needle valve .disposed withinsaid nozzle to control the discharge, an electric heating coilpositioned -around said spray 'nozzle against said shoul- -der, a diskpositioned at the outer end of said coil and mounted upon said nozzle,and an additional heating coil arranged beyond the discharge end of thespray nozzle and connected in series with the first named heating coil.

2. A .spray valve comprising a nozzle for the dischargeof fuel, anelectrical heating coil on the nozz'le between its ends for heating thefuel therein, a'needle valvestem entering the nozzle from the rear endand controlling the flow `from the discharge end, and a secondelectrical heating coill surrounding the stream of fuel at the dischargeend of the nozzle and having its convolutions spaced apart for thepassage of air heethrough to the discharging'stream of v ue In testimonywhereof I have signed my name to this specification in the presence oftwo subscribing witnesses.

y HARTLEY o. BAKER v`lWitnesses: l

SARA McKnNzm, PAULrNE S. BnowN.

